Installing Sensor In Flow-Through Holder - YOKOGAWA OR8EFG User Manual

2.2.3

Installing Sensor in Flow-through Holder

To install the sensor in a flow-through holder, proceed as follows:
(1) Connect the sensor cable to the associated instrument. First, remove the sensor fixing nut
and pass the sensor cable through the nut.
ORP Sensor
Figure 2.10
Properly connect the sensor cable by referring to Section 2.3.
(2) Mount the liquid junction on the sensor body. Peel off the seal covering the liquid junction
mounting hole in the sensor body. Screw the liquid junction softly into the hole by turning it
for two or three turns.
(3) If specified, a reserve tank containing 250 mL solution and mounting hardware to hold this
tank, or a medium pressure reserve tank are supplied with the OR8EFG ORP Sensor.
Attach the mounting hardware for general purpose reserve tank to a pipe (2-inch). Connect
the general purpose reserve tank to the KCl solution supply tube of the sensor. Remove the
cap from the tank and screw the tube connector securely into the tank.
When using a medium pressure reserve tank, attach it to a pipe (2-inch) and perform air
piping to supply pressure for reserve tank as shown in Figure 2.11. Connect the KCl supply
tube of the sensor to this reserve tank.
Pressure Gauge
To ORP Sensor
Figure 2.11
(4) Supply KCl solution to the sensor.
Sensor Fixing Nut
Preparation for Sensor Cable Connection
Maximum Measured Solution
Pressure +10 kPa
Air Piping for Pressurizing Medium Pressure Reserve Tank
< 2. Installation >
Air Supply
Air Pressure
Regulator
IM 12C07J01-01E
2-7
8th Edition : Apr. 27, 2020-00